# ERROR: org.eclipse.microprofile.config.spi.ConfigSource: org.jboss.resteasy.microprofile.config.ServletConfigSource not a subtype

**URL:** <https://forum.keycloak.org/t/error-org-eclipse-microprofile-config-spi-configsource-org-jboss-resteasy-microprofile-config-servletconfigsource-not-a-subtype/22850>\
**Category:** Extending the server\
**Created:** [June 23, 2023, 11:10am UTC](https://forum.keycloak.org/t/error-org-eclipse-microprofile-config-spi-configsource-org-jboss-resteasy-microprofile-config-servletconfigsource-not-a-subtype/22850 "2023-06-23T11:10:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Keyc](https://avatars.discourse-cdn.com/v4/letter/k/e19adc/32.png) [@Keyc](https://forum.keycloak.org/u/Keyc)\
**Post date:** [June 23, 2023, 11:10am UTC](https://forum.keycloak.org/t/error-org-eclipse-microprofile-config-spi-configsource-org-jboss-resteasy-microprofile-config-servletconfigsource-not-a-subtype/22850/1 "2023-06-23T11:10:11Z")

</div>

Hi

I am facing issue when trying to restart keycloak after adding a custom provider. Any help would be appreciated

ERROR: org.eclipse.microprofile.config.spi.ConfigSource: org.jboss.resteasy.microprofile.config.ServletConfigSource not a subtype

#keycloak #quarkus #adapter-javascript